S4·E13 Doll Daze

Jett flies to the Netherlands with Bucky to deliver a package containing a tiny dress to little Nina. The dress is for Nina's doll Annie, because the doll's dress and a few other items were stolen from the dollhouse. By chance, Jett, Bucky and Nina are able to catch the thief in the act and are surprised when it turns out to be a vole.